Answer:
0.5 g
Explanation:
The half-life of a radioactive isotope is the time it takes for a certain amount of that isotope to halve.
In this case, we have an isotope of Americium-241, which has a half-life of
This means that after 1 half-life (432 years), there will be an amount of americium equal to half its initial amount.
In this problem, the initial amount of americium is
Therefore, after 432 years (1 half-life), the amount of americium left will be half:
Yes, they are also known as white rainbows or lunar rainbows.
The term <span>dorsiflexion means to bend the foot upwards at the ankle.
</span><span>Dorsiflexion means to flex the joint of the ankle in such way that the underside of the foot is rotated upwards where the upper surface of one's toes are moved towards the shin bones that are found at the front of the lower leg.</span>
B. Light refracts as it passes through a lens.
The bending of a ray of light also occurs when light passes into and out of a glass lens. ... Because a convex lens can cause rays of light to converge, it can produce an image on a screen.
